Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Qual é o número total de temporadas se os vencedores primários (Sul) forem Ridings High 'A'?
 ###Tabelas: CREATE TABLE 1958–1963 (1958–1963_id AUTO_INCREMENT PRIMARY KEY, Year INT, BB Pop VARCHAR, BB CW VARCHAR, BB RB VARCHAR, BB EL VARCHAR, CB CW VARCHAR, RIAA VARCHAR) CREATE TABLE doubles_titles_23 (doubles_titles_23_id AUTO_INCREMENT PRIMARY KEY, Outcome VARCHAR, Date INT, Tournament VARCHAR, Surface VARCHAR, Partner VARCHAR, Opponents in the final VARCHAR, Score in the final VARCHAR) CREATE TABLE list_of_recent_lower_tier_county_cup_south_winners (list_of_recent_lower_tier_county_cup_south_winners_id AUTO_INCREMENT PRIMARY KEY, Season VARCHAR, Junior (South) Winners VARCHAR, Intermediate (South) Winners VARCHAR, Minor (South) Winners VARCHAR, Primary (South) Winners VARCHAR) CREATE TABLE most_goals_in_a_la_liga_season_at_least_100_goals (most_goals_in_a_la_liga_season_at_least_100_goals_id AUTO_INCREMENT PRIMARY KEY, Rank INT, Club VARCHAR, Season VARCHAR, Goals INT, Apps INT) CREATE TABLE past_wac_women's_basketball_tournament_results (past_wac_women's_basketball_tournament_results_id AUTO_INCREMENT PRIMARY KEY, Year INT, Winner VARCHAR, Score VARCHAR, Opponent VARCHAR, Location VARCHAR)  
SELECT COUNT Season FROM list_of_recent_lower_tier_county_cup_south_winners WHERE Primary (South) Winners = Ridings High 'A'